Comparing Yamaha SR-C20A and LG SC9S makes sense because it shows what devices in their segment can offer. SC9S offers better sound and bass than its opponent - SR-C20A. According to the results of our comparison, SR-C20A received 3.8 points out of 10 possible, and SC9S was rated 6.4 points.
The SR-C20A is rated 5 of 10 against 6 for the SC9S according to the audio features rating.
It worth understanding the difference between the two types of amplification: a passive soundbar does not have its own amplifier and receives amplification from the signal source, while an active soundbar has a built-in amplifier. The same active type of amplification is used in the SR-C20A and the SC9S.
There are stereo soundbars and multichannel ones. It is with the help of multichannel devices that you can get volumetric sound. The number of channels in the considered devices is the same - 2.1. Also, the output power of the soundbars under consideration is different, Yamaha SR-C20A has 100 (overall) W, and 310 (overall) W has the competitor.
SR-C20A | SC9S | |
---|---|---|
Built-in channels | 2.1 | 2.1 |
Amplification type | active | active |
Output power, W | 100 (overall) | 310 (overall) |
Separate speaker (in package) | 0 | 0 |
Separate speaker connections | has not | has not |
Soundbars can have a built-in or external subwoofer. The first type is inseparable from the soundbar body, but for the second, you can choose a good location for deep bass. A built-in subwoofer is only present in the SR-C20A. The SC9S comes with an external subwoofer.
SR-C20A | SC9S | |
---|---|---|
Built-in subwoofer | ✔ | ✖ |
Separate subwoofer (in package) | ✖ | ✔ |
Separate subwoofer connections | ✖ | wireless |
Unlike stereo, when reproducing multichannel sound, each specific direction of sound corresponds to its dedicated channel with a separate independent loudspeaker, which creates a three-dimensional sound stage. The SR-C20A received rating 6 out of 10 for multichannel audio processing, but the SC9S, in the same category, earned 5 out of 10 points.
The peculiarity of Dolby Atmos is that this format is object-oriented, that is, each object of the audio signal is sounded separately and linked to its spatial location. Dolby Atmos surround sound support is implemented only in LG SC9S.
DTS:X is an algorithm for processing sound scenes by the processor, linking directly to objects, rather than channels, and calculating the optimal distribution of sound output in a room. The manufacturer has implemented DTS:X technology only in SC9S.
SR-C20A | SC9S | |
---|---|---|
Dolby Atmos | ✖ | ✔ |
Dolby (other) | Dolby Digital, Dolby Pro Logic II | Dolby TrueHD, Dolby Digital, Dolby Digital Plus |
DTS:X | ✖ | ✔ |
DTS (other) | ✖ | DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS Digital Surround |
The possibility to listen online to millions of songs from one device has become a reality thanks to streaming services.
The popular Spotify service is available on the SC9S.
SR-C20A | SC9S | |
---|---|---|
Apple Music (AirPlay) | ✖ | ✔ |
Amazon Music | ✖ | ✔ |
Spotify | ✖ | ✔ |
Other streaming services | has not | Pandora, SoundCloud |
The existence of a sufficient number of current connectors significantly expands the functionality of the device. For example, only through HDMI is it possible to implement the transfer of object-oriented formats, and the presence of a Bluetooth connection will allow remote control, etc. The devices received different ratings for connectivity: Yamaha SR-C20A was rated 4 out of 10, and LG SC9S was rated 7 out of 10.
The presence of Wi-Fi in the soundbar allows you to get rid of wires when connected to a sound source and get minimal audio latency when playing content from streaming services. Wireless connection via Wi-Fi is possible on the SC9S.
Bluetooth connection is now one of the main communication protocols for speaker systems, which provides excellent quality and minimal audio latency. The availability of Bluetooth protocol, we can see in both models. The SR-C20A has 0/1 HDMI inputs/outputs, but the SC9S got 1/1 HDMI inputs/outputs from the manufacturer.
HDMI ARC is a very usefull technology that creates a two-way communication channel between a TV and another device. This is convenient since there is no need to use optical and other cables in the system. HDMI ARC is basic for both soundbars. Connecting external devices via USB can be done on both models.
SR-C20A | SC9S | |
---|---|---|
WI-FI | ✖ | ✔ |
Bluetooth | ✔ | ✔ |
Ethernet (RJ45) | 0 | 0 |
NFC | ✖ | ✖ |
HDMI input/output | 0/1 | 1/1 |
HDMI ARC | ✔ | ✔ |
HDMI eARC | ✖ | ✔ |
HDMI CEC | ✖ | ✖ |
Optical digital input/output | 2/0 | 1/0 |
USB | 1 (USB 2.0) | 1 (USB 2.0) |
Coaxial digital input/output | 0/0 | 0/0 |
Analog audio input/output (RCA) | 0/0 | 0/0 |
Headphone output | 0 | 0 |
Subwoofer output | 0 | 0 |
Voice control is designed to make operating the device more convenient. This allows you to control basic soundbar functions from anywhere in the room.
Proprietary applications allow you to control your soundbars remotely. This is possible both via Bluetooth and Wi-Fi. The SC9S has its own remote control application. None of these soundbars have a built-in microphone.
Some soundbars can be part of a multi-room system and it is an affordable solution for sounding the whole house. However, it is impossible to create a multiroom system based on each of these soundbars.
SR-C20A | SC9S | |
---|---|---|
Voice control | ✖ | ✔ |
App control | ✖ | ✔ |
Microphone | ✖ | ✖ |
Remote control | ✔ | ✔ |
Multi-room | ✖ | ✖ |
SR-C20A | SC9S | |
---|---|---|
Size (Wx H x D), cm/in | 60x6.4x9.4/23.5x2.5x3.7 | 97.5x6.3x12.4/38.4x2.5x4.9 |
Weight, kg/pounds | 1.7/3.9 | 4.1/9.1 |